Thanks so much for the shout-out! However, I do want to point out that there are six modern "matriarchies." They aren't true matriarchies, in that they aren't dominance hierarchies (what patriarchy truly is) and men are not second class citizens. But women, and mothers in particular, have a central role in each of these cultures and they are characterized by a balance of power and authority. Men typically have political power, but only with the consent and advisement of women.

Here's some more about that I've written about this topic.

https://medium.com/inside-of-elle-beau/theres-never-been-a-matriarchy-edbd758c36e4

"The Akan people of Ghana have a social organization that is fundamentally built around the matriclan, which determines lineage, inheritance, and position in the group. “All matriclan founders are female, but men traditionally hold leadership positions within the society. These inherited roles, however, are passed down matrilineally — meaning through a man’s mothers and sisters (and their children).”

https://medium.com/inside-of-elle-beau/patriarchy-isnt-a-synonym-for-men-5dc30b51a195

"From a sociological perspective, the primacy of men in a patriarchy is an important aspect, but it is far from the only one. For the most part, even most feminist usages of the term acknowledge this as well. One is a social system and the other is a demographic within that system.

Patriarchy is something that arose for the first time only about 6–9 thousand years ago. Prior to that time, most humans lived in egalitarian, matrilineal enclaves of foragers or proto-agricultural settlements. Egalitarianism was an enforced social dynamic, one that still exists among forager tribes today. It’s both intentional and part of a larger survival strategy."